% Fix frame position
\vspace*{-\baselineskip}

\begin{frame}[fragile]

% Align on top
\begin{columns}[t]  

\begin{column}{.48\linewidth}

\input{text/05intro}

\end{column}
\begin{column}{.48\linewidth}

\input{text/85ack}

\end{column}

\end{columns} 

\end{frame}

\vfill

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